Ventilator.



No. mals. i Patented Dec. so, |902.

l R. E. M. BAIN.

VENTILATUR.

mppucaeion med Aug. 2e, 1902.) (No Modem 2 sheets-sheet 2.

A TTOHNE YS.

1 UNITED STATES` PATENT OFFICE.

ROBERT` EDWARD MATHER BAIN, OF ST. LOUIS, MISSOURI.

VENTILAToR.

SPECIFICATION forming part of LettersPatent No. 717,319, datednIDecember 30, 190:2.

v- Applioationiiled August 26,1902. Serial No. 121,041. (No model.) A

To @ZZ whom it may concern/ Be it known that I, ROBERT EDWARD MATHER BAIN, a citizen o f the United States, and a resident of St. Louis, in the State of Missouri, have invented a new audImproved Ventilator, of which the following is a full, clear, and exact description.

This invention relates to'improvements in ventilators designed to be attached to a window-casing to direct or force air into a room through the open window; and the object is to provide a ventilator of simple construction so arranged that it may be -moved to the upper or lower portion of a window, as desired, and that may be folded back when not in use. I will describe a ventilator embodying my invention and then point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the iigures.

Figure 1 is a perspective view of a ventilator embodying myinvention. Fig. 2 is a sec,- tion on the line 2 2 of Fig. 1. Fig: 3 is a detail in perspective, showing one form of connection between the ventilator-bow and the frame. Fig. 4 is a section on the line 4. 4 of Fig. 2, and Fig. 5 shows another means for attaching the ventilator to its frame.

Referring to the drawings, 5 designates a frame movable up and down in relation to a window-casing and carrying the hood-shaped ventilator. Attached to the vertical members of the window-frame at the outer side are guide-plates 6, which enter channels 8, formed in the vertical members of the frame 5.

The ventilator consists of a hood 7, of any suitable material-such, for instance, as canvas or awning material-'or it may be formed of metal or wooden slats designed to fold one upon another, similar to Venetian blinds. The front or open end of the hood is attached to a metal bowSa, having Vswinging connection with one side of the frame 5. The opposite edge of the hood material is attached to a vertical rail of the frame, while the upper and lower edges are attached to the upper and lower rails or members of the frame.

The ends of the bow 8a are connected to spiral springs 9, which are attached to the frame 5. These springs obviously will move the hood to its open position, as indicated in Fig. 1, when the same is released by unloosening the cord 10, attached to the bow 8a and extended along the hood and then down the window-casing. kThis cord obviously may be used for moving the hood to folded position when not desired for use.

The frame carrying the ventilator may be moved forward by any desired means. I have here shown a cord 11'a's attached at one end to the frame and passing over a pulley 12, connected to the upper portion of the windowframe. By drawing upon the cord 11 the frame and ventilator may be raised, and upon releasing the cord the ventilator will move downward by gravity. It is designed that the opening of the ventilator shall be placed in a general direction of the wind. If it is desired to reverse the ventilator, a fastening screw or screws of one of the guideplates 6 may be removed, so that said guide-plate may be swung outward and the frame 5 taken out and reversed.

v While I have shown and described the device as particularly useful in house ventilation or for directing cool air therein, it may be used to direct hot air into a drying-chamber or the like.

In Fig. 5 I have shown another means for attaching the bow Sa to the frame. In this example the ends of the bow are turned inward, as at 13, to engage in socket members 14, attached to the frame, and the bow may be rigidly held as'adj usted by means of thumbnuts 15, operating in said socket members.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent- 1. A ventilator, comprising a frame, a folding hood attached to said frame, and a bow having swinging connection with the frame at one side, and to which the open end of the hood is attached.

2. A ventilator comprising a frame, arranged to move vertically on a window-casing, a bow having swinging connections with said frame at one side, and a hood of foldable material attached to said bow and also attached to said frame.

3. A ventilator designed to be attached to a window-casing, comprising a frame having a sliding connection with the window-casing,

a bow having swinging connection with the frame at one side, a hood of iiexible material attached to said bow and to the frame, and means for moving the ventilator vertically.

4. A ventilator designed to be attachedto a window-casing, comprising a frame having channels in its vertical side portion, guideplates secured to the window-casing and engaging in said channels, a bow having spring connection with said frame, and a iexible material attached to said frame and also attached to the bow.

5. A ventilator designed to be attached to a window-casing, comprising a frame having its vertical rails provided with channels,

guide-plates secured to the window-casing and engaging in said channels, a bow, coiledspring connections between the ends of said bow and the frame, and a hood of eXible material attached with its forward or open end to said bow and having its opposite end attached to the frame, and also having its upper and lower edges attached to the frame. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. l

ROBERT EDWARD MATIIER BAIN. Witnesses:

HUGO KINTsoH, CYRIL CHADWICK. 

